Charlize Theron & Michael Fassbender join the stars at WonderCon

New mom Charlize Theron and “Shame” star Michael Fassbender stunned fantasy geeks and film fans on Saturday when they stopped by the WonderCon 2012 convention in Anaheim, California to promote new sci-fi movie “Prometheus.”

Theron, who announced the news she had adopted a baby boy earlier this week, and the Irish actor met fans and the media and chatted about their much-anticipated new film, and revealed the event gave them the chance to see clips from the film for the first time.

Theron said, “It’s nerve-wracking for us because we haven’t seen anything, so we’re actually seeing what they’re (fans) seeing for the first time too.”

Fassbenber admitted he was thrilled to be at the convention: “Anything in the comic book fantasy world it breeds a very passionate fan base.”